openjava.tools
Class WriterStack

java.lang.Object
  |
  +--openjava.tools.WriterStack

public class WriterStack

extends Object

Wrapper class of class Stack to specialize into Writer.

Field Summary

private static PrintWriter	defaultWriter
private Stack	stack

Constructor Summary

WriterStack()
Constructs this stack with an element(standard output).

WriterStack(OutputStream out)
Constructs this stack with the specified output stream.

WriterStack(PrintWriter writer)
Constructs this stack with the specified print writer.

WriterStack(Writer writer)
Constructs this stack with the specified writer.

Method Summary

boolean	empty() Tests if this stack is empty.
PrintWriter	peek() Looks at the print writer at the top of this stack without removing it from the stack.
PrintWriter	pop() Removes the print writer at the top of this stack and returns that print writer as the value of this function.
void	push(OutputStream ostream) Pushes a print writer from the specified print stream onto the top of this stack.
void	push(PrintWriter writer) Pushes a print writer onto the top of this stack.
void	push(Writer writer) Pushes a print writer onto the top of this stack.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

stack

private Stack stack

defaultWriter

private static PrintWriter defaultWriter

Constructor Detail

WriterStack

public WriterStack()

Constructs this stack with an element(standard output).

WriterStack

public WriterStack(PrintWriter writer)

Constructs this stack with the specified print writer.

WriterStack

public WriterStack(Writer writer)

Constructs this stack with the specified writer.

WriterStack

public WriterStack(OutputStream out)

Constructs this stack with the specified output stream.

Method Detail

peek

public PrintWriter peek()

Looks at the print writer at the top of this stack without removing it from the stack.

Returns:

the print writer at the top of this stack.

pop

public PrintWriter pop()

Removes the print writer at the top of this stack and returns that print writer as the value of this function.

Returns:

The object at the top of this stack.

push

public void push(PrintWriter writer)

Pushes a print writer onto the top of this stack.

Parameters:

writer - the print writer to be pushed onto this stack.

Returns:

the item argument.

push

public void push(Writer writer)

Pushes a print writer onto the top of this stack.

Parameters:

writer - the writer to be pushed onto this stack.

Returns:

the item argument.

push

public void push(OutputStream ostream)

Pushes a print writer from the specified print stream onto the top of this stack.

Parameters:

ostream - the output stream to be pushed onto this stack.

Returns:

the item argument.

empty

public boolean empty()

Tests if this stack is empty.

Returns:

true if this stack is empty; false otherwise.